Combination of Chemically-Characterized Essential Oils from Eucalyptus polybractea, Ormenis mixta, and Lavandula burnatii: Optimization of a New Complete Antibacterial Formulation Using Simplex-Centroid Mixture Design

Table 2

The MIC and MBC values of EPEO, LBEO, and OMEO against bacteria strains using microdilution assay.

Bacteria^a	EPEO (%v/v)			LBEO (%v/v)			OMEO (%v/v)			Gentamicin^b (μg/mL)		Kanamycin^b (μg/mL)
	MIC	MBC	Effect	MIC	MBC	Effect	MIC	MBC	Effect	MIC	MBC	MIC	MBC
E. coli	2	4	Bacteriostatic	1	1	Bactericidal	6	6	Bactericidal	16	32	32	32
S. aureus	0.25	0.25	Bactericidal	0.25	0.25	Bactericidal	0.5	0.5	Bactericidal	8	32	16	32

^aFinal bacterial concentration was 10⁶ CFU/mL. ^bGentamicin and kanamycin were used as references.